

Я нашёл ключи среди старых бумаг.
I found the keys among some old papers.
Есть ли среди вас врач?
Is there a doctor among you?
Он самый высокий среди нас.
He is the tallest among us.
"среди" is in the lesson "Prepositions" (Level 36), along with 12 other useful words. LinDuo has 180 topic lessons like this one, 2,380 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.